257812900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4679}}^1$

素因数の和:4741

約数の個数: 72

約数和(自身を含む): 609336000

約数和(自身を除く): 351523100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 380, 475, 551, 580, 725, 950, 1102, 1450, 1900, 2204, 2755, 2900, 4679, 5510, 9358, 11020, 13775, 18716, 23395, 27550, 46790, 55100, 88901, 93580, 116975, 135691, 177802, 233950, 271382, 355604, 444505, 467900, 542764, 678455, 889010, 1356910, 1778020, 2222525, 2578129, 2713820, 3392275, 4445050, 5156258, 6784550, 8890100, 10312516, 12890645, 13569100, 25781290, 51562580, 64453225, 128906450, 257812900]

約数ペア:

[(1, 257812900), (2, 128906450), (4, 64453225), (5, 51562580), (10, 25781290), (19, 13569100), (20, 12890645), (25, 10312516), (29, 8890100), (38, 6784550), (50, 5156258), (58, 4445050), (76, 3392275), (95, 2713820), (100, 2578129), (116, 2222525), (145, 1778020), (190, 1356910), (290, 889010), (380, 678455), (475, 542764), (551, 467900), (580, 444505), (725, 355604), (950, 271382), (1102, 233950), (1450, 177802), (1900, 135691), (2204, 116975), (2755, 93580), (2900, 88901), (4679, 55100), (5510, 46790), (9358, 27550), (11020, 23395), (13775, 18716)]